thomas



. (No Model.) v 2 sheets-sheet 1.

' G. C. THOMAS.

LAMP.

Patented Deo. 30, 1884.

VH1 i (No Model.) 2 Sheets-Sheet .2.

G. C. THOMAS.

LAMP.

No. 309,996. Patented Deo. 30, 1884.

` UNTTED STATES Parser-T Ormea.

GEORGE C. THOMAS, OF VATERBURY, CONNECTICUT.

LAMP.

SPECIFICATION forming part of Letters Patent No. 309,996, dated December30, 1884.

(Xo model.)

i To all whom it may concern..-

Be itknown that I, GEORGE C. THoMAs, of Wfaterbury, in the county of NewHaven and State of Connecticut, have invented a certain new and usefulImprovement in Lamps, of which the following is a specication.

My improvement relates particularly to that class of lamps wherein thereis au elevated reservoir from which the oil or other iiuid used forilluminating` Hows to the burner.

My improvement consists in the combination, with a reservoir for oil orother fluid, having a delivery-opening near the bottom and a compartmentarranged at the side or portion adjacent to said delivery-opening, andhaving its bottom open and extending down about as low as the top of thedelivery-opening, of a tube extending downward from the upper portion ofthe reservoir into the said compartment.

The improvement also consists in the combination, in a lamp, of aburner-tube, an oil or fluid reservoir connected therewith, and having afilling-tube extending downwardly into it from the upper portion, asupport to which the reservoir and supplytube are pivotally connected toenable the reservoir to be tilted for filling, and a support forthechimney-gallery and shade-holder admitting oi' their adjustment to shiftthem and the chimney and shade so that they will not be in the way ofthe bu rner-tubc during the tilting ofthe reservoir.

In the accompanying drawings, Figure 1 is a side View of a lampembodying my improve ment, the reservoir and certain other parts beingshown in section, and the base or end piece of the supporting-rod beingomitted. This tigure also includes dotted outlines of certain of theparts in different positions from those in which they are represented inbold outlines. Fig. 2 is a view of the supporting- .rod and certain ofits appurtenances. Fig. 3 is a horizontal section ot' the reservoir,(including a representation in dotted lines of the filling-tube and theenlarged chamber with which it communicates) the oil or fluid supplytube, the support therefor, and means whereby it is connected to thesupport. Fig.I 4 is a vertical section of a reservoir and supplytubeillustrating a modification of my improvement, and Fig. 5 is a view of amodification thereof.

Similar letters of reference designate corresponding parts in all thefigures.

Referring first toFigs. l, 2, and 3, A designates a supporting-rod whichmay be erected on any suitable basepiece, or may be suspended fromabove.

B designates the reservoir of the lamp. C designates the supply-tube,whereby oil or other tluid is conveyed from the lower end of thereservoir to the burner-tube D,wherein the wick is arranged. Thesupply-tube C is connected toa collar, E, which tits the rod A, and maybe secured in different positions thereon by means of a set-screw, a.These parts may bc made of the usual materials. The reservoir is shownas permanently closed, and it is provided with a filling-tube, F, whichin this example of my invention extends from the upper part to the lowerpart. The mouth of this filling-tube extends through the side of thereservoir, and itslower end communicates with a chamber or compartment,G, of segmental form extending across the lower part of the reservoir atthe side or portion at which is the delivery opening. This chamber, ashere shown, is open at the bottoni, but is closed elsewhere, save wherethe filling-tube F enters it. The compartment or chamber G eX- tendsabout as low as the top of the deliveryopening. The supply-tube C isprovided with a circular socket, I), which extends transverselytherefrom, and fits on a round stud` c, that projects from the collar E.The socket b isprovided with a circumferential groove or slot, e, whichterminates at one end in an axial extension, f. A spring, g, ttingbetween the stud c and the socketb, tends to force the latter outward,so as to cause the axial extensionf of the groove to slide over a pin,h, which extends from the stud c. Vhen this occurs the reservoir,supply-tube, and burner-tube are locked in their normal positions.l/Vhen the socket bis pushed inward against the resistance of the springg, the axial extensionf of the groove or slot is disengaged froin thepin h, and then the reservoir, supply-tube, and burner may be tilted soas to bring the filling-tube Fof the reservoir into an approximatelyhorizontal 'position, as indicated in dotted lines in Fig. 1. YVhen thereservoir is in this position, oil or other duid may be poured into itthrough the filling-tube, the air escaping during the operation throughthe latter. After the parts are turned into and locked in their normalpositions the oil or iiuidiiows down the supplytube to take the place ofthat which is consumed in the wick, and air enters the reservoir to takeits place through the filling-tube. The chamber G- extends below the topof the burner-tube, and the pressure of air on the oil afforded by itprevents any overflow at the tip of the burner-tube. The wick may beadjusted by any suitable means, for instance, by a spiral tube rotatedby the dri p-cup H, and engaging with a non-rotary spiral wick-carrier.The drip-cup may be detachably connected with the said spiral tube, soas to facilitate emptying it.

I designates a chimney-gallery, and J designates a chimney supportedtherein.

K designates a shade-holder, andtLashade sustained by it. Both thechimneygallery and the shade-holder are connected to an arm, M,extending from a collar, N, which fits upon a sleeve, O, extendingupwardly from the collar E. This sleeve has a longitudinal feather orrib, j, with which engages a groove, Z, on the collar N, so that thechimney-gallery and shade-holder will be maintained in their properpositions with the chimney-gallery over the burner-tube. By raising thecollar or socket N above the feather]` and turning it slightly around,as indicated in dotted lines in Fig. 1, it may be supported'on the topof t-he feather with the chimney-gallery, chimney, shadeholder, andshade in positions where they will not interfere with the tilting of thereservior, in the manner before explained.

In Fig. 4 the reservoir B, filling-tube F, and chamber G are the same asthose just described, save that the latter are arranged in a verticalplane at right angles to the vertical plane in which the supply-tube Cis arranged. The supply-tube is not intended to tilt, but will have theordinary rigid connection with the collar which fits the supportingrod.The end C of the supply-tube isniade in the form of the plug of acock,and iits in a socket which is similar to the barrel of a cock andaffixed tothe reservoir. The reservoir can be rocked upon andtransversely to the supply-tube, to bring the iilling-tnbe into theproper position to receive the oil or other fluid. rIhe end of thesupplytube and its socket may be provided with ports, so thatcommunicat-ion between them will be cut off when the reservoir is rockedover, but so that communication between them will be established whenthe reservoir is adjusted to its normal position. By my invention Idispense with the ordinary reservoir which is removed for filling.

Preferably, in each modification of myA in1- provemeut I apply to theouter end of the filling-tube F a perforated plug, F', so as to preventoil from rapidly flowing out of the tube in the event of the lamp beingturned over. Such plug will be most advantageously made of sheet metal,and hollow,with small apertures p p', as then, if the lamp should beturned over,the oil would have to flow through the aperture p into theplug, and to accumulate there considerably before passing out throughthe aperture p. The plug may be secured in place by a screw-thread.

As there will he little chance of oil being spilled in any considerablequantity in the event of my lamp being upset, the lamp is more safet-han the lamps which are in common use.

I am aware that it is old to make a nontilting lamp-reservoir having achamber with a closed bottom entirely across the lower end of saidreservoir, and a pipe extending from the top of the reservoir through itand into the chamber, said reservoir also having on its top a vent-tubeprovided with a stop-cock. The advantage of my improvement over thatreferred to consists in thatI am enabled to use a very small chamber,thereby occupying but little space in the reservoir. I avoid the use ot'the vent-tube and stop-cock, and the feed of oil will be morefrequentand therefore more uniform.

XVhat I claim as my invention,aud desire to secure by Letters Patent,is-

1. The combination,with a reservoir for oil or other iiuid,havingadelivery-opening near the bottom and a compartment arranged at the sideor portion adjacent to said deliveryopening, and having its bottom openand extending down about as low as the top of the delivery-opening, of atube extending downward from the upper portion ofthe reservoir into saidcompartment, substantially as herein described.

2. The combination of a burner-tube, an oil or fluid reservoir connectedtherewith and having a filling-tube extending downwardly into it fromthe upper portion, a support to which the reservoir and supply-tube arepiv-v otally connected to enable the reservoir to be tilted for filling,and a support for the chim ney gallery and shade -holder admitting oftheir adjustment to shift them and the chimney and shade ont of the wayof the burnertube during the tilting of the reservoir, substautially asspecified.

The combination of the collar E, provided with the stud c, having thepin h, the supplytube having the socket b, furnished with the slot c f,and the spring g, substantially as specified.

4. The combination of the collar N, provided with the groove l and armM, and the sleeve O, provided with the feather or rib j, substantiallyas specified. i

' GEORGE C. THOMAS.

-Vitiiesses: I

Fnnnii. HAYNES, T. J. KEANE.

ICO

IIO

